اَللّٰهُمَّ افْتَحْ لَنَا أَبْوَالبَ رَحْمَتِكَ، وَسَهِّلْ لَنَا أَبْوَابَ رِزْقِكَ ـ

Allaahummaf-tah lanaa abwaaba rahmatik(a), wa sahhil lanaa abwaaba rizqik. (ِAbu Humayd. Musnad Ahmad #15477; Al-Hizb al-A’zam)

O Allah, open for us the doors of Your mercy and give us easy access to the doors to Your provisions.

The first part of this du’aa is also to be recited when entering a masjid. A masjid is the house of Allah Ta’aala. We enter it with the plea that we are engulfed in His mercy.

(Source: Khalid Baig’s translation and commentary of du’aa #104 in the Accepted Whispers: Munajat-e-Maqbul)